Thread: Where do you get your custom dies from

At one point, I wanted a full length sizing die to fit a wildcat reamer. I trudged through the internet and eventually read a thread about making a full-length sizing die from the chambering reamer by reaming a particular type of steel which shrinks when heat treated the right way. The process seems to solve more than one problem but it may be quite technical. I did not follow this up with any gunsmith.